<template>
  <div :style="styleObj">
    <v-chart :options="options" autoresize/>
  </div>
</template>

<script>
import echarts from 'echarts';
export default {
  name: 'WidgetPieRoundChart',  //空心圆角饼图参考 https://www.makeapie.com/editor.html?c=xmQZRm2IHw
  components: {},
  props: {
    value: Object,
    ispreview: Boolean,
  },
  data() {
    return {
      options: {
        backgroundColor: '#0A2E5D',
        color: color,
        title: {
          text: '',
          top: '48%',
          textAlign: 'center',
          left: '49%',
          textStyle: {
            color: '#fff',
            fontSize: 22,
            fontWeight: '400',
          },
        },
        graphic: {
          elements: [
            {
              type: 'image',
              z: 3,
              style: {
                image: '',
                width: 178,
                height: 178,
              },
              left: 'center',
              top: 'center',
              position: [100, 100],
            },
          ],
        },
        tooltip: {
          show: false,
        },
        legend: {
          icon: 'circle',
          orient: 'horizontal',
          // x: 'left',
          data: ['火车', '飞机', '客车', '轮渡'],
          right: 340,
          bottom: 150,
          align: 'right',
          textStyle: {
            color: '#fff',
          },
          itemGap: 20,
        },
        toolbox: {
          show: false,
        },
        series: [
          {
            name: '',
            type: 'pie',
            clockWise: false,
            radius: [105, 109],
            hoverAnimation: false,
            itemStyle: {
              normal: {
                label: {
                  show: true,
                  position: 'outside',
                  color: '#ddd',
                  formatter: function (params) {
                    var percent = 0;
                    var total = 0;
                    for (var i = 0; i < trafficWay.length; i++) {
                      total += trafficWay[i].value;
                    }
                    percent = ((params.value / total) * 100).toFixed(0);
                    if (params.name !== '') {
                      return '交通方式：' + params.name + '\n' + '\n' + '占百分比：' + percent + '%';
                    } else {
                      return '';
                    }
                  },
                },
                labelLine: {
                  length: 30,
                  length2: 100,
                  show: true,
                  color: '#00ffff',
                },
              },
            },
            data: [
              {
                name: '火车',
                value: 20,
              },
              {
                name: '飞机',
                value: 10,
              },
              {
                name: '客车',
                value: 30,
              },
              {
                name: '轮渡',
                value: 40,
              },
            ]
          }
        ]
      },
      optionsStyle: {}, // 样式
      optionsData: {}, // 数据
      optionsSetup: {},
    }
  },
  computed: {
    styleObj() {
      return {
        position: this.ispreview ? 'absolute' : 'static',
        width: this.optionsStyle.width + 'px',
        height: this.optionsStyle.height + 'px',
        left: this.optionsStyle.left + 'px',
        top: this.optionsStyle.top + 'px',
        background: this.optionsSetup.background,
      }
    },
  },
  watch: {
    value: {
      handler(val) {
        console.log(val)
        this.optionsStyle = val.position
        this.optionsData = val.data
        this.optionsCollapse = val.setup
        this.optionsSetup = val.setup
        this.editorOptions()
      },
      deep: true,
    },
  },
  mounted() {
    this.optionsStyle = this.value.position
    this.optionsData = this.value.data
    this.optionsCollapse = this.value.setup
    this.optionsSetup = this.value.setup
    this.editorOptions()
  },
  methods: {
    // 修改图标options属性
    editorOptions() {
      this.setOptionsTitle()
      // this.setOptionsX()
      // this.setOptionsY()
      // this.setOptionsTop()
      // this.setOptionsTooltip()
      // this.setOptionsMargin()
      // this.setOptionsLegend()
      // this.setOptionsColor()
      this.setOptionsData()
    },
    // 标题修改
    setOptionsTitle() {
      const optionsCollapse = this.optionsSetup
      const title = {}
      title.text = optionsCollapse.titleText
      title.show = optionsCollapse.isNoTitle
      title.left = optionsCollapse.textAlign
      title.textStyle = {
        color: optionsCollapse.textColor,
        fontSize: optionsCollapse.textFontSize,
        fontWeight: optionsCollapse.textFontWeight,
      }
      title.subtext = optionsCollapse.subText
      title.subtextStyle = {
        color: optionsCollapse.subTextColor,
        fontWeight: optionsCollapse.subTextFontWeight,
        fontSize: optionsCollapse.subTextFontSize,
      }

      this.options.title = title
    },
    // X轴设置
    setOptionsX() {
      const optionsCollapse = this.optionsSetup
      const xAxis = {
        type: 'category',
        show: optionsCollapse.hideX, // 坐标轴是否显示
        name: optionsCollapse.xName, // 坐标轴名称
        nameTextStyle: {
          color: optionsCollapse.xNameColor,
          fontSize: optionsCollapse.xNameFontSize,
        },
        nameRotate: optionsCollapse.textAngle, // 文字角度
        inverse: optionsCollapse.reversalX, // 轴反转
        axisLabel: {
          show: true,
          interval: optionsCollapse.textInterval, // 文字角度
          rotate: optionsCollapse.textAngle, // 文字角度
          textStyle: {
            color: optionsCollapse.Xcolor, // x轴 坐标文字颜色
            fontSize: optionsCollapse.fontSizeX,
          },
        },
        axisLine: {
          show: true,
          lineStyle: {
            color: '#fff',
          },
        },
      }
      this.options.xAxis = xAxis
    },
    // Y轴设置
    setOptionsY() {
      const optionsCollapse = this.optionsSetup
      const yAxis = {
        type: 'value',
        show: optionsCollapse.isShowY, // 坐标轴是否显示
        name: optionsCollapse.textNameY, // 坐标轴名称
        nameTextStyle: {
          color: optionsCollapse.NameColorY,
          fontSize: optionsCollapse.NameFontSizeY,
        },
        inverse: optionsCollapse.reversalY, // 轴反转
        axisLabel: {
          show: true,
          textStyle: {
            color: optionsCollapse.colorY, // x轴 坐标文字颜色
            fontSize: optionsCollapse.fontSizeY,
          },
        },
        splitLine: {
          show: false,
        },
        axisLine: {
          show: true,
          lineStyle: {
            color: '#fff',
          },
        },
      }

      this.options.yAxis = yAxis
    },
    // 数值设定 or 柱体设置
    setOptionsTop() {
      const optionsCollapse = this.optionsSetup
      const series = this.options.series

      for (const key in series) {
        if (series[key].type == 'bar') {
          series[key].label = {
            show: optionsCollapse.isShow,
            position: 'top',
            distance: 10,
            fontSize: optionsCollapse.fontSize,
            color: optionsCollapse.subTextColor,
            fontWeight: optionsCollapse.fontWeight,
          }
          series[key].barWidth = optionsCollapse.maxWidth
          series[key].barMinHeight = optionsCollapse.minHeight
        }
      }
      this.options.series = series
    },
    // tooltip 设置
    setOptionsTooltip() {
      const optionsCollapse = this.optionsSetup
      const tooltip = {
        trigger: 'item',
        show: true,
        textStyle: {
          color: optionsCollapse.lineColor,
          fontSize: optionsCollapse.fontSize,
        },
      }
      this.options.tooltip = tooltip
    },
    // 边距设置
    setOptionsMargin() {
      const optionsCollapse = this.optionsSetup
      const grid = {
        left: optionsCollapse.marginLeft,
        right: optionsCollapse.marginRight,
        bottom: optionsCollapse.marginBottom,
        top: optionsCollapse.marginTop,
        containLabel: true,
      }
      this.options.grid = grid
    },
    // 图例操作 legend
    setOptionsLegend() {
      const optionsCollapse = this.optionsSetup
      const legend = this.options.legend
      legend.show = optionsCollapse.isShowLegend
      legend.left = optionsCollapse.lateralPosition == 'left' ? 0 : 'auto'
      legend.right = optionsCollapse.lateralPosition == 'right' ? 0 : 'auto'
      legend.top = optionsCollapse.longitudinalPosition == 'top' ? 0 : 'auto'
      legend.bottom = optionsCollapse.longitudinalPosition == 'bottom' ? 0 : 'auto'
      legend.orient = optionsCollapse.layoutFront
      legend.textStyle = {
        color: optionsCollapse.lengedColor,
        fontSize: optionsCollapse.fontSize,
      }
      legend.itemWidth = optionsCollapse.lengedWidth
    },
    // 图例颜色修改
    setOptionsColor() {
      const optionsCollapse = this.optionsSetup
      const customColor = optionsCollapse.customColor
      if (!customColor) return
      const arrColor = []
      for (let i = 0; i < customColor.length; i++) {
        arrColor.push(customColor[i].color)
      }
      const itemStyle = {
        normal: {
          color: (params) => {
            return arrColor[params.dataIndex]
          },
          barBorderRadius: optionsCollapse.radius,
        },
      }
      for (const key in this.options.series) {
        if (this.options.series[key].type == 'bar') {
          this.options.series[key].itemStyle = itemStyle
        }
      }
      this.options = Object.assign({}, this.options)
    },
    // 数据解析
    setOptionsData() {
      const optionsSetup = this.optionsSetup
      console.log(optionsSetup)
      const optionsData = this.optionsData // 数据类型 静态 or 动态
      console.log(optionsData)
      optionsData.dataType == 'staticData' ? this.staticDataFn(optionsData.staticData, optionsSetup) : this.dynamicDataFn(optionsData.dynamicData, optionsSetup)
    },
    // 静态数据
    staticDataFn(val, optionsSetup) {
      const staticData = JSON.parse(val)
      // x轴
      if (optionsSetup.verticalShow) {
        this.options.xAxis.data = []
        this.options.yAxis.data = staticData.categories
        this.options.xAxis.type = 'value'
        this.options.yAxis.type = 'category'
      } else {
        this.options.xAxis.data = staticData.categories
        this.options.yAxis.data = []
        this.options.xAxis.type = 'category'
        this.options.yAxis.type = 'value'
      }
      // series
      const series = this.options.series
      for (const i in series) {
        if (series[i].type == 'bar') {
          series[i].data = staticData.series[0].data
        }
      }
    },
    // 动态数据
    dynamicDataFn(val, optionsSetup) {
      console.log(val)
      if (!val) return
      // x轴
      if (optionsSetup.verticalShow) {
        this.options.xAxis.data = []
        this.options.yAxis.data = val.xAxis
        this.options.xAxis.type = 'value'
        this.options.yAxis.type = 'category'
      } else {
        this.options.xAxis.data = val.xAxis
        this.options.yAxis.data = []
        this.options.xAxis.type = 'category'
        this.options.yAxis.type = 'value'
      }

      // series
      const series = this.options.series
      for (const i in series) {
        if (series[i].type == 'bar') {
          series[i].data = val.series[i].data
        }
      }
    },
  },
}
</script>

<style scoped lang="scss">
.echarts {
  width: 100%;
  height: 100%;
  overflow: hidden;
}
</style>
